Saw tooth for circular saw
AssigneeQuadco Equipment Inc.
InventorsCharles D. MacLennan, Nick Palfy, Laurier Savard, Robert E. Mitchell
Life of this patent
Estimating the term…
Abstract
A saw tooth for a circular saw for a feller including, in one embodiment, a square saw tooth head having a frusto-pyramidal shape to be mounted on a holder, and the saw tooth head includes seats for receiving inserts. The inserts are provided with cutting tips and cutting edges while a clamp nut retains the inserts against the tooth head. When the edges and tips are worn or damaged from impact, the inserts are first replaced. When the seat of the head is damaged, the tooth can be rotated.
Claims8
A replaceable saw tooth for a circular saw blade having an axis of rotation, wherein the tooth comprises a tooth head of frusto-pyramidal configuration, having a front face, a rear face, and planar side walls extending therebetween, a central bore extending axially of the head between the rear face and the front face, the front face of the tooth head having seat means and for receiving at least two inserts, each insert defining a single cutting tip with a pair of receding cutting edges such that the pair of inserts provides a pair of spaced-apart cutting tips subtending a cutting edge which is remote from the axis of rotation of the blade, each insert and the seat means having cooperating apertures and locating pins, clamp means overlying a portion of the inserts, bolt means extending through the bore and secured to the clamp means such that the inserts are securely held by means of the combination of the locating pins and apertures and the clamp means.
A replaceable saw tooth for a circular saw blade having an axis of rotation, wherein the tooth comprises a tooth head of frusto-pyramidal configuration, having a front face, a rear face, and planar side walls extending therebetween, a central bore extending axially of the head between the rear face and the front face, the front face of the tooth head provided with a seat for receiving an insert, the insert being a cast mono-block having at least two cutting tips projecting away from the front face and located at corners corresponding to the side wall remote from the axis of rotation of the saw blade when the tooth is mounted on the saw blade, the insert including receding cutting edges extending from the tips such that there is a cutting edge formed between the pair of tips remote from the center of rotation of the blade, an opening centrally of the insert formed therein to be engaged by a bolt extending through the bore of the tooth head so as to securely retain the insert on the seat of the head, and the seat defining a cruciform-shaped recess and a complementary cruciform set of ribs is formed on the insert to be engaged in the cruciform recess to thereby prevent rotation of the insert relative to the tooth head when the insert is secured to the seat.
Dependencies are inferred from the claim text.